This is the 1992 movie, by the way. The show would get at least 80, but I don't do TV. Or do I? No. Not yet. No.
Joss Whedon didn't like how this one turned out, so went on to do the show, and I agree with him. It's cutesy and unoriginal and lame, and worst of all, it lacks the chemistry between the central characters and the witty writing that made the series such a gem. It starts with Buffy not yet slaying, until her watcher (not Giles, so I don't like him) pops over to fill her in on the whole vampire thing (actually, I think he's the guy from the 'Hunger Games' movies). There aren't any other demons, her friends suck (it's set in Los Angeles, before she moves to Sunnydale - she references the fire at the end of this movie in the first episode of 'BtVS'), and her personality is more akin to Cordelia's. She's a little more shallow than TV Buffy, and lacks the depth of Sarah's rendition. Also the vampires lack their nom nom face, and there is no Spike.
Despite all of this, the movie is not a total failure (it helps to not compare it to it's TV counterpart). It still manages to be funny-goofy on occasion, and it wraps up nicely, enjoying a higher budget than the show did, at least for the first several seasons. Kind of like 'Carrie' with a happier ending (by the way, a quick google of 'Carrie' reveals that it's just been re-made. I'm guessing it sucks). The fighting is also alright, and we can see the beginnings of what will become Buffy-talk. It's not as painful as might be expected, and while not necessarily enjoyable, it is an interesting insight into the evolution of 'BtVS'.
Oh and the comment on the 'Carrie' remake. It's just that anything where John Travolta played was in the original, a remake can never be close to as good. Also it's a 'Carrie' remake. Come on, I mean if there's one thing we learned from the 'Footloose' remake, it's not to remake anything that isnt... well it's not to remake anything.
Buffy the Vampire Slayer: 24.7